Pneumatic control for wrapper transfers



Feb. 18, 1941. s. CLAUSEN PNEUMATIC CONTROL FOR WRAPPER TRANSFERS Filed Nov. 30, 1937 77 7 61 FIG.4

S FIG 2 7782 28 66;; 1/50 27 A p 7% 3 60 F|6.6 7 I INVENTOR 4 SIGURD .CLAUSEN ATTORNEY Patented Feb. 18, 1941 y 2 UNITED STATES PAT T OFFICE PNEUMATIC CONTROL FOR. WRAPPER.

. TRANSFERS Sigurd Clausen, Brooklyn, N. Y., assignor to International Cigar Machinery Company, a corporation of NewJersey J Application November 30, 1937, Serial No. 177,247 12 Claims. (01. 131-21) This invention relates to improvements in A revolving 'disk Ill, Figs. 1 and 2, in the present pneumatic controls for cigar wrapper transfers. invention is provided with a stud II mounted off One of the principal objects of the invention is to center and imparting a' crank motion to a link I 2 provide simplified operating means for the flag connecting to an arm l3, loosely mounted on a 5. pump of such a transfer as that illustrated in the stud. l4 secured in a bracket l5 attached to the 5 patent to Halstead, N0.1,721,554, granted July 23, frame 40 of the machine. Arm [3 has an ex- 1929. p tending arm ll equipped with a bolt l8 fastened to Another object is to provide operating means for a lever l9 also-pivoted on stud I4. Theother end the flag pump which can be applied to existing 20 of lever I9. is forked, as seen in Fig. 2, per-' l0: cigar rolling machines with relatively little change mitting the rounded or yoke end portion 20 of the or reconstruction of the machine, as by getting all lever to straddle the piston rod' 2| and a trip lever the cam or timed motions from one face of a plate 24, and to engage an actuator block 22 secured on cam, such for instance as the cutter roller operatsaid rod. ing' cam with which the machines are equipped. Lever l9,.in depressing rod 2'] moves the piston 1 It is, therefore, an object of the. invention to 23 to its lower position, where it is held by trip provide a simplified construction in which no adlever 24 provided with a latch 25 engaging the ditional cams or cam shafts are required for the block 22. Lever 2'4, pivotally mounted on a stud flag pump operation. 26 carried byframe I5, has an upwardly extend- In this connection it is also an object to setthe ing arm 21 supporting a cam roller 28 adapted to flag pump by crank means for subsequent tripbe engaged and tripped by a cam piece 29 during 20 ping by cam. means. each cycle of disk in. Arm 21, in being tripped, A feature of the invention is the arrangement turns about its pivot 26 and swings trip lever 24 of the foregoing to permit adjusting the time of from its holding position, permitting a comprestripping the pump to determine when the flag sion spring 30 (Fig. -2) to return the piston 23 pump blastisapplied. to its 'up-position 3|, as shown in dotted lines. 25

Still another object is to provide an improved Theresultant air-blast passes through a flexible suction cutoff for cutting oif suction in the suction tube '32 connecting to a tube 33 leading. t the transfer when the wrapper carrying face plate wrapper carrier top 34 which directs the air downis removed, which will be more universally ap wardly, the blast passing through the perforated 5Q plicable than prior devices of this general type. wrapper carrier bottom plate 35 and acting to With these and other objects in view the inblow the flag portion F of the wrapper leaf from vention consists in the constructions setforth and plate for reasons tobe hereinafter described more particularly pointed out in the appended (seeFig. 5). I claims. The piston 23 operates ina cylinder 38 which 5 In the accompanying drawing: constitutes the upper portion of the pump hous- 35 Fig. 1 is a front view of a portion of the maing 31. Housing 31 has a plurality of lugs 38 chine showing the pump and connection to the secured to bracket l5 by tie bars 39 carried by the wrapper transfer and also illustrates the pump frame 40 of the machine, the hubs 38 being secontrol mechanism; v curedto the bracket [5 by bolts 4|. Thepiston 40 Fig. 2 is a side View of the pump and control rod 2| is guided in a bearing 42 of housing 31 and 0 e in a hub 43 of the downwardly projecting arm mechanism;

V Fig. 3 is a detail plan view of the wrapper carof bracket l5. rier unit embodying the improved suction control 1 The operation of the mechanism is as follows: valve which closes when the perforated suction Disk 10, in revolving, by means 'of crank pin ll 45 head is removed; imparts motion to the lever I 9 which moves the 45 Fig. 4 is asectional detail view of the valve unit; piston 23 to its down-position whereupon a trip 1 Fig. 5 is a fragmentary View, in sectional elevalever 24 by means of latch 25 engages the actuator tion, ofa schematic character, illustrating the block 22 of the piston and holds the piston in the wrapper ransfer at t W pp s t n; d down position (see Fig. 1). Lever l9 then as- 9 1 Fig. 6, is a detail view in v t ection on the cends to its up-position 45, shown in dotted lines, so line 6 .6 of Fig. 3. Fig.1, at which time the cam piece 29 engages Referring to the drawing, the pneumatic concam roller 28, thereby tripping arm 21 which in trol mechanism illustrated is used in conjunction turning about its pivot 26 releases latch plate 25 with cigar machine mechanism for supplying a from block 22, .permitting spring 30 to raise the 5 wrapper and applying itto a bunch B (see Fig.5). piston .to its upf-position. During the elapsed 56 reference may be made-to thepaten't to Tyber'g, No. 1,075,172. The patent to Halstead, No. 1,721,554.,- also illustrates, in some detail, the structure of a suction control for cigar wrapper carriers upon which the present invention is to be regarded as an im rovement. v

In Fig. 6 is shown on an enlarged-scale, taken on. the line 6-6 of Fig. 3, an improved form of connection between the fluid-pressure pipe 33 and the head 34, this connection having a duct 68 in communication witha -throat 69, the Wall 10 of which is concaved to affordasmcoth flow of the blast into the head 34 (see Fig. 5).

What is claimed is: i

1. In a cigar wrapping mechanism of the class described, including a wrapper transfer for delivering a wrapper to the cigar wrapping devices, said transfer being provided with means for holding a wrapper in outspread condition there-- on, and also including a single rotary disk connected with gearing adapted to operate other mechanism in a cigar making machine said disk being provided with a tripping means, a flag pump adapted to apply'intermittently a blast effective to blow the flag end of eachwrapper sucessively from said transfer device; and means to control the operation of said flag pump, said controlling means comprising devices connecting said flag pump with said single rotary disk, said connecting devices including means adapted to set said flag pump for subsequent tripping by said tripping means on said disk.

2. In a cigar wrapping mechanism of the class described, including a wrapper transfer for deto the cigar wrapping devices, said transfer provided with means for holding a wrapper in outspread condition thereon, and also including a single rotor connected with gearing adapted to operate other mechanism in a cigar making machine; a flag pump blast effective to blow the flag end of each wrapper successively from said transfer device; and means to control the operation of said flag pump, said controlling said flag pump with said single rotor, said connecting devices including crank means adapted to set said flag pump and means on said rotor for tripping said flag pump.

3. A flag-pump-operating the features set forth in claim 2 in which provision is made of means to adjust the means for tripping said pump to vary the time when the flag pump blast is to be applied.

4. In a cigar wrapping mechanism of the class described, comprising a bunch rolling mechanism, a wrapper cutter mechanism, a suction wrapper-transfer mechanism whereby a wrapper is transferred under suction from said cutter mechanism nism, means for timed relation, a single rotor having a face perpendicular to its axis, gearing connecting said face of the rotor with said driving means, a suction mechanism adapted to apply suction effective to hold each wrapper in its turn during transfer, means to apply a blast intermittently to blow the flag end of each wrapper successively from the transfer to said bunch, and operating connections between said air blast mechanism and said rotor, said blast creating mechanism comprising a flag pump, and said rotor having said face connected to the flag pump by a crank device adapted to set said pump; a latch device adapted to hold the piston of the piunp in said mechanism having set position; means for tripping said latch when the flag pump blast is to be applied, and a cam means on the face of said rotor adapted to operate said tripping means.

I 5. A flag pump operating the features set forth in claim sion is made of means to adjust tripping said pump to vary the flag pump blast is to be applied.

6. A flag pump operating mechanism having the features claimed in claim 4 in which said flag pump comprises a cylinder provided with a top port, and which-has a piston rod fitted with a collar plate so disposed on said rod relatively to the co-acting portion of the crank means, and so disposed with relation to the stroke of the piston within the, cylinder, that the piston will always bottom against a cushion of residual air beyond said port in the top of the cyinder, and thus a certain amount of lost motion will be permitted to the crank arm relatively to the piston rod collar, such amount of lost motion between said co-acting parts being adequate to prevent injurious shocks therebetween regardless of adjustments of the latch tripping connections, and means to adjust the position of said cam means upon said face plate to vary the time of tripping said latch, and thus to determine when the flag pump blast is to be applied.

'7. A flag pump operating mechanism having the features claimed in claim 4 in which said flag pump comprises a cylinder provided with a top port, and which has a piston rod fitted with a collar plate so disposed on said rod relatively to the co-acting portion of the crank means, and so disposed with relation to the stroke of the piston within the cylinder, that the piston will always bottom against a cushion of residual air beyond said port in the top of the cylinder, and thus a certain amount of lost motion will be permitted to the crank arm relatively to the piston rod collar, such amount of lost motion between said co-acting parts being adequate to prevent injurious shocks therebetween regardless of adjustment of the latch tripping connections, and means to adjust the position of said cam-means upon said face plate to vary the time of tripping said latch, and thus to determine when the flag pump blast is to be applied, said cam means being formed with an arcuate slot and provided with fastening means passing through said slot into the face of said rotor.

8. In a suction head of the class described, for wrapper carriers, said head having a suction chamber, a detachable suction plate for carrying the wrapper, and a hollow neck by which said suction chamber is supported for transfer, the combination with said neck of means for automatically cutting off the suction when the plate is detached, said means including valve mechanism within said neck, means whereby the valve mechanism is normally incapacitated when the suction plate is attached, and means acting upon detachment of said plate to operate said valve mechanism to cut off said suction, said neck being detachable from said chamber, with said valve mechanism, as a unitary structure.

9. In a suction head of the class wrapper carriers, said head ,having chamber, a detachable suction plate for carrying the wrapper, and a hollow neck by which said suction chamber is supported for transfer, the combination with said neck of means for automatically cutting off the suction when the plate is detached, said means including valve mechamech-anism having 4 in which provithe means for time when the described, for a suction nism within said neck,'a spring pressed plunger mounted within said neck and projecting into position for engagement normally with said plate, whereby the valve mechanism is normally incapacitated when the suction plate is attached, and a spring acting upon detachment of said plate to bias said valve to cut off said suction, said neck being detachable from said chamber, with said valve mechanism, including said spring pressed plunger, as a unitary structure, for ready inspection, repair and replacement.

10. In a suction head of the class described, for wrapper carriers having a suction chamber, a detachable suction plate for carrying the wrapper, and a hollow neck by which said suction chamber is supported for transfer; the combination with said neck of means for automatically said neck, a sleeve mounted within said neck, a plunger mounted to slide in said sleeve and pro- J'ecting into position for engagement normally with said plate, whereby the valve mechanism is normally incapacitated when the suction plate is attached, and a spring mounted upon said plunger and acting upon detachment of said plate to bias said valve to out 01f said suction, said valve mechanism comprising a valve member and an arm extending from said valve member and connected pivotally to the upper end of said plunger.

11. A flag pump operating mechanism having the features claimed in claim 1 in which said single disk comprises a plate mounted upon the between said disk plate and piston rod comprising in combination a crank pin and a swinging crank on the face of said disk, a lever pivoted on said support and having an arm connected with the free end of said crank, said lever having a second arm with its free end adapted to be engaged with one of said collars in an intermediate position upon said piston rod, whereby said crank is adapted to set said piston rod outwardly against the bias of said spring; a lever pivoted on said supporting structure intermediate said flag pump and said face plate of the disk, one arm of said lever having formed therewith a latch member adapted to be engaged with a collar on said piston rod, to hold said piston rod in its extended set position, and another arm of said lever being extended across said face plate, and a cam means attached adjustably to said face plate, whereby upon rotation of said face plate said latch will be tripped at a predetermined time, variable at will, during each cycle of said cam plate.

12. In a suction head of the class described, for wrapper carriers, said head having a detachable hollow neck, a suction chamber mounted detachably on said neck, a suction plate mounted detachab'ly on said suction chamber for carrying the wrapper, and means carried directly by said neck and extending through said suction chamber for automatically cutting ofi the suction when the plate is detached, said means including a valve, and valve control mechanism within said neck.

SIGURD CLAUSEN. 

